Admin
- Jul 2, 2014
Soil: Part I and II
Soil is a mixture of weathered rock fragments and organic matter at the earth’s surface. It is biologically active — a home to countless microorganisms, invertebrates and plant roots. It varies in depth from a few inches to 5-feet or more. Soil is roughly 50 percent pore space. This space forms a complex network of pores of varying sizes, much like those in a sponge. Soil provides nutrients, water and physical support for plants as well as air for plant roots. Soil organisms
